Edited: 7/6/2013 8:55:35 AM PermalinkI'm somewhat confident you're only going to find second-hand copies at this point (as in, no money goes to the developer). Even if it did, I'm pretty sure none of it goes to Bungie at this point (they lost it to Take-Two when Microsoft bought them). It's about $5 dollars on e-bay. PM me if you want to get it free.
I've been playing a bunch of Bungie's games, and thanks to Aleph 1, the entire Marathon series is right at my fingertips. Myth, however, is not. If anyone knows a place to download or buy(legally please) Myth, I would appreciate it.